cute little blob

A lot of guessing !!

Assume symmetry for the 15 and 7, make a pyramid, of sorts. It's.... doable, and cute, but.... Not a good hanjie, sorry.

Looks like a hershey kiss.

Thanks Chibinecco.

Piggybacking on chibinecco, if you continue diagonals up from the 3s until they meet, you can complete it logically from there.

>144 solutions.